I've had 3 of various types, never snapped one if I tried, crushed a couple with no ill effects, dropped regularly and I am the least graceful diver in the game.
Accuracy, yes fluffies don't work so well but I clean them with hot water after a day.
So far haven't had a problem, only thing I would say is when they say it's a .695 it seems tighter than the pipe of the same diameter, or I use a size above.